diff --git a/freqtrade/exchange/exchange.py b/freqtrade/exchange/exchange.py
index b3b347016..7fc2af308 100644
--- a/freqtrade/exchange/exchange.py
+++ b/freqtrade/exchange/exchange.py
@@ -894,9 +894,9 @@ class Exchange:
                                           until=until, from_id=from_id))
 
     @retrier
-    def cancel_order(self, order_id: str, pair: str) -> None:
+    def cancel_order(self, order_id: str, pair: str) -> Dict:
         if self._config['dry_run']:
-            return
+            return {}
 
         try:
             return self._api.cancel_order(order_id, pair)